disc.jexp: Expected Values of Two Discrete Random Variables

In jhk0530/Rstat: Basic Statistical Methods in R

Description

Joint Probabilities and Expected Values of Two Discrete Random Variables

Usage

disc.jexp(tabXY, Xn = "X", Yn = "Y", prt = "exp", pprt = FALSE, dig = 4)

Arguments

tabXY	Joint frequency (or probability) table
Xn	Name of X, Default: 'X'
Yn	Name of Y, Default: 'Y'
prt	Option for detailed output in c("", "exp", "cov", "cor"), Default: 'exp'
pprt	Plot the joint & marginal PDF? Default: FALSE
dig	Number of digits below the decimal point, Default: 4

Value

list(Ex=E(X), Dx=D(X), Ey=E(Y), Dy=D(Y), Vxy=Cov(X,Y), Cxy=Corr(X,Y))

Examples

S <- rolldie2(2)
X <- apply(S, 1, max)
Y <- apply(S, 1, min)
tXY <- table(X, Y)
disc.jexp(tXY, prt = "cor", pprt = TRUE)

jhk0530/Rstat documentation built on Dec. 20, 2021, 11:11 p.m.